Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Representative IHC microscope slides containing four different cancer tissues, stained for CD8 and PD-L1 with four different cancer tissue. According to the slide, in the lower left corner there is a control placenta sample and in the lower right corner there is a control tonsil sample.
